The First-In Power Module� provides the necessary power to all First-In Smart Station Units. Power Modules are located throughout the station, providing distributed power for the alerting system. These intelligent Power Modules are capable of sensing a loss of power. Once a loss or interruption of power is sensed, the alerting system notifies the station crew and can also be programmed to notify Dispatch. All Power Modules come equipped with an external on-line, full-time Uninterruptible Power Supply (UPS).